WO2003078026A1 - Filtre de ceramique destine au controle de l'emission de gaz d'echappement - Google Patents
Filtre de ceramique destine au controle de l'emission de gaz d'echappement Download PDFInfo
- Publication number
- WO2003078026A1 WO2003078026A1 PCT/JP2003/003183 JP0303183W WO03078026A1 WO 2003078026 A1 WO2003078026 A1 WO 2003078026A1 JP 0303183 W JP0303183 W JP 0303183W WO 03078026 A1 WO03078026 A1 WO 03078026A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- filter
- ceramic
- sealing material
- material layer
- honeycomb
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2068—Other inorganic materials, e.g. ceramics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2422—Mounting of the body within a housing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2425—Honeycomb filters characterized by parameters related to the physical properties of the honeycomb structure material
- B01D46/2448—Honeycomb filters characterized by parameters related to the physical properties of the honeycomb structure material of the adhesive layers, i.e. joints between segments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2425—Honeycomb filters characterized by parameters related to the physical properties of the honeycomb structure material
- B01D46/24494—Thermal expansion coefficient, heat capacity or thermal conductivity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
- B01D46/2455—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure of the whole honeycomb or segments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
- B01D46/2462—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure the outer peripheral sealing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
- B01D46/2466—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure of the adhesive layers, i.e. joints between segments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
- B01D46/2474—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure of the walls along the length of the honeycomb
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
- B01D46/2476—Monolithic structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
- B01D46/2478—Structures comprising honeycomb segments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
- B01D46/2482—Thickness, height, width, length or diameter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
- B01D46/2486—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure characterised by the shapes or configurations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
- B01D46/2486—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure characterised by the shapes or configurations
- B01D46/249—Quadrangular e.g. square or diamond
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2498—The honeycomb filter being defined by mathematical relationships
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/011—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more purifying devices arranged in parallel
- F01N13/017—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more purifying devices arranged in parallel the purifying devices are arranged in a single housing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/0211—Arrangements for mounting filtering elements in housing, e.g. with means for compensating thermal expansion or vibration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
- F01N3/0222—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being monolithic, e.g. honeycombs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
- F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
- F01N2260/10—Exhaust treating devices having provisions not otherwise provided for for avoiding stress caused by expansions or contractions due to temperature variations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/06—Ceramic, e.g. monoliths
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/30—Honeycomb supports characterised by their structural details
- F01N2330/34—Honeycomb supports characterised by their structural details with flow channels of polygonal cross section
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/30—Honeycomb supports characterised by their structural details
- F01N2330/48—Honeycomb supports characterised by their structural details characterised by the number of flow passages, e.g. cell density
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2340/00—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
- F01N2450/28—Methods or apparatus for fitting, inserting or repairing different elements by using adhesive material, e.g. cement
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S55/00—Gas separation
- Y10S55/10—Residue burned
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S55/00—Gas separation
- Y10S55/30—Exhaust treatment
Definitions
- the present invention relates to a ceramic filter for treating exhaust gas, and more particularly, to a ceramic filter assembly in which a plurality of filters made of a ceramic sintered body are integrated, a canning body, and a columnar honeycomb filter that can be used for manufacturing the same.
- Conventional technology a ceramic filter for treating exhaust gas, and more particularly, to a ceramic filter assembly in which a plurality of filters made of a ceramic sintered body are integrated, a canning body, and a columnar honeycomb filter that can be used for manufacturing the same.
- a general exhaust gas purifying apparatus has a structure in which a casing is provided in the middle of an exhaust pipe connected to an exhaust manifold of an engine, and a filter having fine holes is disposed therein.
- Materials for forming filters include ceramics in addition to metals and alloys.
- a ceramic filter As an example of a ceramic filter, a cordierite honeycomb filter is known. Recently, it has advantages such as heat resistance, mechanical strength, high collection efficiency, chemical stability, and low pressure loss.
- a porous silicon carbide sintered body is used as a filter forming material. (See, for example, Japanese Patent Application Laid-Open No. 2000-16-169)
- the honeycomb filter has a number of cells (through holes) extending along its own axis. As the exhaust gas passes through the filter, the cell walls trap particulates. As a result, 3 ⁇ 4 particles are removed from the exhaust gas.
- the honeycomb filter made of a porous silicon carbide sintered body has a large thermal expansion, cracks are more likely to occur in the filter during use at high temperatures as the size thereof is increased. Therefore, as a means for avoiding damage due to cracks, a technique for manufacturing one large ceramic filter aggregate by integrally integrating a plurality of small filter pieces has been proposed in recent years. Here is a brief introduction.
- a rectangular pillar-shaped honeycomb formed body is formed by continuously extruding a ceramic raw material through a mold of an extruder. After cutting the honeycomb formed body into equal lengths, the cut pieces are fired to form a filter. After firing, a plurality of filters are bundled and integrated by bonding the outer peripheral surfaces of the filters through a ceramic sealing material layer. As a result, a desired ceramic filter assembly is completed. Then, a mat-shaped heat insulating material made of ceramic fiber or the like is wound around the outer peripheral surface of the ceramic filter assembly. In this state, the assembly is accommodated in a casing provided along the exhaust pipe.
- An object of the present invention is to provide a ceramic filter assembly having excellent strength. Another object of the present invention is to provide a columnar honeycomb filter suitable for producing the same.
- the present inventor has proposed that the exhaust gas purifying apparatus is connected to an engine that emits exhaust gas through a pipe having an inner diameter smaller than that of the filter, and that the pipe is formed in a conical shape immediately before the filter.
- the present inventor has determined that the outer peripheral portion in the major axis direction and the outer peripheral portion in the minor axis direction differ due to the difference in the distance from the center. We also noticed that there was a considerable temperature difference between the two. It was found that this temperature difference hindered the uniform regeneration of the filter assembly, caused soot to be left unburned, and eventually caused cracks due to exceeding the strength limit of the filter.
- the present inventor has conducted tests and studies to complete a flat filter aggregate that enables a uniform temperature rise. Then, it was found that if a ceramic filter aggregate was manufactured so as to satisfy a certain condition, a ceramic filter aggregate having excellent strength could be obtained by relaxing thermal stress.
- a plurality of columnar honeycomb filters made of a porous ceramic sintered body are integrated by bonding through a ceramic sealing material layer, and cut in parallel to end faces of the plurality of honeycomb filters.
- a ceramic filter aggregate having a substantially elliptical cross-sectional shape is provided.
- the plurality of honeycomb filters are cut in parallel to the end face.
- the honeycomb filter includes a rectangular shape having a rectangular cross section, and a ratio B 1 ZB 2 of the length B 1 of the long side and the length B 2 of the short side in the rectangle being 1.1 to 3.0.
- the honeycomb filter is arranged such that the long side and the short side of the honeycomb filter are parallel to the major axis and the minor axis of the aggregate, respectively.
- each honeycomb filter has a plurality of rectangular cells extending along the axis of the filter, and has a length C1 and a length C2 of a long side of each cell.
- the ratio C 1 / C 2 is 1.1 to 3.0.
- the plurality of honeycomb finolators are arranged such that the long sides of the cells are parallel to the major axis of the aggregate, and the short sides of the cells are parallel to the minor axis of the aggregate. .
- each honeycomb filter has a plurality of rectangular cells defined by relatively thick cell walls and relatively thin cell walls orthogonal to each other and extending along the axis of the filter,
- the relatively thick cell wall is parallel to a major axis of the aggregate
- the relatively thin cell wall is parallel to a minor axis of the aggregate.
- the ceramic sealing material layer extends in parallel with the major axis of the assembly, and a second sealing material layer extending perpendicular to the major axis of the assembly.
- the first sealing material layer is thicker than the second sealing material layer.
- the ceramic sealing material layer includes a first sealing material layer parallel to a major axis of the aggregate, and a second sealing material layer orthogonal to the major axis of the aggregate.
- the thermal conductivity of the first sealing material layer is lower than the thermal conductivity of the second sealing material layer.
- the ceramic filter assembly further includes a ceramic outer sealing material layer formed on the outer periphery of the assembly.
- a first portion located on an extension of a major axis of the assembly is thicker than a second portion located on an extension of a minor axis of the assembly.
- a plurality of columnar honeycomb filters made of a porous ceramic sintered body are integrated by bonding through a ceramic inner seal material layer, and are integrated with the end faces of the plurality of honeycomb filters.
- a ceramic filter assembly having a substantially elliptical cross-section when cut in parallel;
- a canning body comprising a tubular casing to be housed and a heat insulating material disposed between the casing and the ceramic filter assembly is provided.
- the heat insulating material has a first portion located on an extension of the major axis of the assembly, and a second portion located on an extension of the minor axis of the assembly, wherein the first portion is more than the second portion. Also thick.
- a columnar honeycomb filter made of a porous ceramic sintered body is provided.
- the honeycomb filter has a rectangular cross-sectional shape when cut in parallel to its end face, and the ratio B 1 ZB 2 of the length B 1 of the long side and the length B 2 of the short side in the rectangle is obtained. 3.0 or less.
- a columnar honeycomb filter has a plurality of cells extending along the axial direction thereof and an end face, and each cell has a rectangular cross-sectional shape when cut in parallel to the end face.
- C 1 the length of the long side of each cell
- C 2 the ratio C 1 ZC 2 is 3.0 or less.
- a columnar honeycomb filter made of a porous ceramic sintered body has a plurality of rectangular cells extending along the axial direction of the honeycomb filter, and each rectangular cell is a relatively thick cell orthogonal to each other.
- a first straight line in which a distance between two points intersecting the substantially elliptical contour is maximized is assumed.
- a second straight line that is perpendicular to the first straight line and that has a maximum distance between two points that intersect the substantially elliptical contour The number of the sealing material layers traversed by the first straight line of the assembly is equal to or less than the number of the sealing material layers traversed by the second straight line.
- FIG. 1 is a schematic diagram of an exhaust gas purification device provided with a ceramic filter assembly according to one embodiment of the present invention.
- FIG. 2 is a perspective view of the ceramic filter assembly of FIG.
- Fig. 3 (a) is a perspective view of a honeycomb filter having a rectangular cross section.
- FIG. 3B is a perspective view of a honeycomb filter having rectangular cells.
- FIG. 3 (c) is a perspective view of a honeycomb filter having a plurality of cells, each of which is orthogonal to each other and defined by cell walls having different thicknesses.
- FIG. 4 is a cross-sectional view of the exhaust gas purifying apparatus of FIG.
- FIGS. 5A to 5E show cross-sectional shapes of the ceramic filter assembly.
- Fig. 6 (a) is a side view of a filter assembly formed from a honeycomb filter having a rectangular cross section.
- FIGS. 6 (b) and 6 (c) are side views of a filter assembly formed of a honeycomb filter having a square cross section.
- FIGS. 7 (a), 7 (b) and 7 (c) are side views of a filter assembly formed from honeycomb filters having cells of different shapes.
- FIGS. 8 (a), 8 (b) and 8 (c) are side views of a filter assembly formed of a honeycomb filter having cell walls having different thicknesses.
- FIGS. 9 (a), 9 (b), and 9 (c) are side views of a filter assembly integrated by sealing material layers having different thicknesses.
- FIG. 10 (a) is a side view of a filter assembly integrally formed by sealing material layers having different thermal conductivities.
- FIG. 10 (b) is a side view of a filter assembly provided with an outer sealing material layer having an uneven thickness.
- FIG. 10 (c) is a side view of a filter assembly provided with a heat insulating material having an uneven thickness.
- the exhaust gas purification device 1 is a device for purifying exhaust gas discharged from a diesel engine 2 as an internal combustion engine.
- the diesel engine 2 has a plurality of cylinders (not shown). Each cylinder is connected to each branch pipe 4 of an exhaust manifold 3 made of a metal material. Each branch pipe 4 is connected to one manifold body 5. Therefore, the exhaust gas discharged from each cylinder is concentrated at one place.
- the first exhaust pipe 6 and the second exhaust pipe made of metallic material Tube 7 is installed downstream of the exhaust manifold 3, the first exhaust pipe 6 and the second exhaust pipe made of metallic material Tube 7 is installed.
- the upstream end of the first exhaust pipe 6 is connected to the manifold main body 5.
- a cylindrical casing 8 also made of a metal material is arranged between the first exhaust pipe 6 and the second exhaust pipe 7, a cylindrical casing 8 also made of a metal material is arranged.
- An upstream end of the casing 8 is connected to a downstream end of the first trachea 6, and a downstream end of the casing 8 is connected to an upstream end of the second exhaust pipe 7.
- Exhaust gas flows inside the first exhaust pipe 6, the casing 8, and the second exhaust pipe 7.
- the center of the casing 8 has a larger diameter than the exhaust pipes 6 and 7.
- the casing 8 accommodates a ceramic filter assembly 9.
- the exhaust gas purification device 1 in which the ceramic filter assembly 9 is accommodated in the casing 8 is called a canning body.
- a heat insulating material 10 is provided between the outer surface of the assembly 9 and the inner surface of the casing 8.
- the heat insulating material 10 is a mat-like material including ceramic fibers, and its thickness is 2 mn! ⁇ 6 O mm. It is desirable that the heat insulating material 10 has an elastic structure and has a function of releasing thermal stress.
- the heat insulating material 10 prevents heat from escaping from the outermost peripheral portion of the assembly 9 to minimize the energy consumption at the time of regeneration, and has an elastic structure so that the exhaust gas It is possible to prevent the displacement of the ceramic filter assembly 9 which is caused by vibrations or the like caused by running pressure or the like.
- the ceramic filter assembly 9 of the present embodiment removes diesel particulates as described above, it is generally called a diesel particulate filter (DPF).
- the aggregate 9 of the present embodiment is formed by bundling and integrating a plurality of honeycomb filters F1.
- the honeycomb fins F 1 located at the ⁇ center portion of the aggregate 9 are all rectangular prisms as shown in FIGS. 3 (a) to 3 (c). .
- a plurality of irregular shaped honeycomb filters F1 that are not square pillar-shaped are arranged.
- an approximately elliptical columnar ceramic finoleta aggregate 9 having a substantially elliptical cross section is formed.
- the pre-cut shape of the aggregate 9 of the present embodiment is substantially elliptical.
- a substantially elliptical shape J is not limited to an ellipse consisting only of curves, as shown in Fig. 5 (a). Absent.
- a flat elliptical shape including a partly straight line as shown in FIG. 5 (b), more specifically including a pair of parallel straight lines, is also included. The straight portion may be at only one location, or may be at three or more locations.
- the flat shape J includes shapes as shown in FIGS. 5 (a), 5 (b), 5 (c), 5 (d) and 5 (e).
- the major axis of the aggregate 9 Let the length of the minor axis be A1, A2 (A1> A2) If the substantially elliptical shape is an ellipse, the major axis passing through the focal point is the major axis, and the minor axis perpendicular to it The axis is the minor axis, where the dimensions Al and A2 are desirably 500 mm or less If the dimensions Al and A2 are larger than 50 Omm, it is difficult to produce an aggregate having sufficient strength It is.
- each honeycomb filter F1 is defined as a dimension along a flow direction (a direction perpendicular to the filter end face) of the gas to be processed. Further, when each honeycomb filter F1 is cut perpendicularly to the flow direction of the exhaust gas (in other words, when cut parallel to the filter end face), the cross-sectional shape is rectangular.
- the lengths (external dimensions) of the long side and the short side of the cross section of the honeycomb filter F1 are Bl and B2 (B1 ⁇ B2), respectively.
- Each dimension B 1, B 2 is desirably 110 mm or less. If the dimensions Bl and B2 are larger than 11 Omm, the strength of the filter / filter F1 is significantly reduced.
- the ratio of B 1 ZB 2 is 3 or less. If the ratio of B12 is larger than 3, thermal shock is likely to act on the filter F1 due to thermal shock, and cracks are likely to occur.
- the two-cam filter F1 is made of a porous silicon carbide sintered body that is a kind of a porous ceramic sintered body.
- the reason for using a silicon carbide sintered body is that it has an advantage of being particularly excellent in heat resistance and thermal conductivity as compared with other ceramics.
- a sintered body other than silicon carbide for example, a sintered body such as silicon nitride, sialon, alumina, cordierite, and mullite can be selected.
- a silicon-containing ceramic in which metal silicon is blended with the above-mentioned ceramic, a ceramic bonded with silicon or a silicide compound can also be used. This is because the metallic silicon can prevent cracks due to thermal shock or the like of the ceramic. It is preferable to add 5 to 50 parts by weight of metallic silicon to 100 parts by weight of silicon carbide. If the amount of metallic silicon is small, the adhesive strength of the filter F1 is reduced. If the amount is too large, the filter F1 is further densified, and characteristics required for the filter cannot be obtained.
- each honeycomb filter F1 is a so-called honeycomb structure.
- the reason why the honeycomb structure is adopted is that there is an advantage that the loss of shoring force is small even when the amount of collected fine particles is increased.
- Each filter F 1 has a plurality of cells 12 (through holes) having a rectangular cross-sectional shape, which are formed in a regular manner not in the direction of the axis.
- Each section '1 2 is long and thick.
- the side of the protruding surface; R (inner diameter) is defined as C I, C 2 (C 1 ⁇ C 2).
- Each cell 12 is separated from each other by thin cell walls 13a, 13b.
- the thicknesses of the cell walls 13a and 13b are defined as Dl and D2 (D1 ⁇ D2), respectively.
- the ratio C 1 ZC 2 is desirably 3 or less. If the ratio C 1 / C 2 is greater than 3, heat and force are likely to be applied to the inodes due to thermal shock, and cook is likely to occur.
- the ratio D 1 ZD 2 is desirably 3 or less. If the ratio D 1 D 2 is larger than 3, thermal shock is likely to be applied to the filter F 1 due to thermal shock, and cracks are likely to occur.
- each cell 12 is sealed with a sealing body 14 (here, a sintered body of porous silicon carbide) on one end face 9 ⁇ , 9 of the filter F1. Due to the sealed cells 12, a checkered pattern is formed on the end faces 9 ⁇ and 9i3.
- the density of the cells 12 is about 200 cells / square inch.
- About half of the cells 12 are open at the upstream end face 9 ⁇ , and the remaining cells 12 are open at the downstream end face 9.
- the side lengths CI and C2 of the cell 12 are desirably set to 0.5 mm to 5.0 mm.
- the dimensions C 1 and C 2 are larger than 5.0 mm, the filtration area of the cell walls 13 a and 13 b will be small, and the performance of the filter F 1 will be reduced.
- the thicknesses Dl and D2 of the cell walls 13a and 13b are desirably set to 0.1 to 0.5 mm. Because the dimensions D l, D If it is larger than 0.5 mm, the fluid resistance (pressure loss) caused by the filter F 1 increases, which is not preferable. On the other hand, if the dimension D1, 02 is smaller than 0.1 mm, the strength of the filter F1 becomes insufficient.
- the average pore size of the honeycomb finoleta F 1 is 1 ⁇ m to 50 m, and even 5 ⁇ ! 220 ⁇ . If the average pore diameter is less than 1 / zm, clogging of the honeycomb filter F1 due to accumulation of fine particles becomes remarkable. On the other hand, if the average pore diameter exceeds 50 ⁇ , fine particles cannot be collected, and the collection efficiency will decrease.
- the porosity of the honeycomb filter F1 is preferably 30% to 80%, more preferably 40% to 60%. If the porosity is less than 30%, the honeycomb filter F1 may be too dense, and exhaust gas may not be allowed to flow inside. On the other hand, if the porosity exceeds 80%, the number of voids in the honeycomb filter F1 becomes too large, and the strength may be weakened and the efficiency of collecting fine particles may be reduced.
- the thermal conductivity of the Hucum filter F1 is preferably from K to 8 OW / mK, more preferably from 3 OW / mK to 7 OW / m. m ⁇ K is particularly good.
- the outer peripheral surfaces of the honeycomb filter F1 are bonded to each other via ceramic sealing material layers 15a and 15b.
- the ceramic sealing material layers 15a and 15b are defined as being of the same type if they are parallel to each other.
- the ceramic sealing material layer which is parallel to the short side of the assembly 9 is 15a
- the thickness of the ceramic sealing material layer is parallel to the long side of the assembly 9, and the thermal conductivity is G1.
- the sealing material layer is defined as 15b
- its thickness is defined as E2 (E1 ⁇ E2)
- its thermal conductivity is defined as G2. At this time, it is desirable that the ratio ElZE2 is 5 or less.
- the ratio E 1 / E2 is larger than 5, the heat conduction is reversed in the short side direction and the long side direction, so that it is difficult to uniformly raise the temperature of the assembly 9. It is desirable that the ratio E1 / E2 be 1.05 or more.
- the ratio E 1 / E 2 is less than 1. ⁇ , heat conduction in the long side direction is less likely to occur, and it becomes difficult to uniformly heat the aggregate 9, soot burns, and eventually cracks are generated. It is easy to occur.
- the thicknesses of the sealing material layers 15a and 15b are made equal, the composition (mixing) of the sealing material layers 15a and 15b is made different from each other, so that the heat conduction between the two sealing material layers 15a and 15b is performed.
- the ratios Gl and G2 may be adjusted.
- the ratio G1ZG2 is desirably 0.20 or more. If the ratio G1ZG2 is smaller than 0.20, the heat conduction of the heat is reversed in the short side direction and the long side direction, so that it is difficult to uniformly heat the aggregate 9. It is desirable that the ratio G1ZG2 be 0.7 or less.
- the ratio G 1ZG 2 is larger than SO.7, heat conduction in the long side direction is less likely to occur, making it difficult to raise the temperature of the assembly 9 uniformly, so that soot burns and eventually cracks are liable to occur.
- the thickness of the sealing material layers 15a and 15b E l, £ 2 is 0.3 mn! It is preferably from 3 mm to 3 mm, and more preferably from 0.5 mm to 2 mm. If the thicknesses E 1 and E 2 exceed 3 mm, even if the thermal conductivity is high, the thermal resistance of the sealing material layers 15 a and 15 b is large, and the heat conduction between the honeycomb filters F 1 is hindered. In addition, since the ratio of the honeycomb filter F1 in the aggregate 9 is relatively reduced, the filtration capacity is reduced.
- the thickness E1, £ 2 of the sealing material layers 15a, 15b is less than 0.3 mm, the heat resistance will not be large, but the bonding force between the honeycomb filters F1 will be insufficient. Then, the aggregate 9 is easily broken.
- the sealing material layers 15a and 15b are composed of at least inorganic fibers, an inorganic binder, an organic binder, and inorganic particles, and the three-dimensionally interspersed inorganic fibers and inorganic particles, and the inorganic binder and the organic binder. It is desirable to be made of an elastic material that is connected to each other through the intermediary.
- Examples of the inorganic fibers contained in the sealing material layers 15a and 15b include at least one or more ceramic fibers selected from silica-alumina fiber, mullite fiber, alumina fiber and silica fiber. Among these, it is particularly desirable to select silica-alumina ceramic fibers. Silica-alumina ceramic fiber has excellent heat resistance and has the effect of absorbing thermal stress. Because it is.
- the content of the silica-alumina ceramic fibers in the seal material layers 15a and 15b is preferably from 10% to 70% by weight, more preferably from 10% to 40% by weight, based on the solid content. Preferably it is 20 to 30% by weight.
- the content of the silica-alumina ceramic fiber is less than 10% by weight, the effect as an elastic body is reduced. - How, if the content of the silica one alumina ceramic fiber exceeds 70 weight 0/0, not only leads to a decrease in thermal conductivity, elasticity also decreases.
- the shot content in silica-ceramic ceramic fiber is 1 weight 0 /. 110% by weight, preferably 1% by weight to 5% by weight, more preferably 1% by weight to 3% by weight. Making the shot content less than 1% by weight is difficult in manufacturing. On the other hand, if the shot content exceeds 50% by weight, the outer peripheral surface of the honeycomb filter F1 is easily damaged.
- the fiber length of the silica-alumina ceramic fiber is l / xm to 100 mm, preferably 1 ⁇ to 50 ⁇ , and more preferably 1 ⁇ m to 20 mm. If the fiber length is less than S 1 / zm, an elastic structure cannot be formed. If the fiber length exceeds 10 Omm, the fibers are pilled and the dispersibility of the inorganic fine particles is deteriorated. Further, it is difficult to reduce the thickness of the sealing material layers 15a and 15b to 3 mm or less, and it becomes impossible to improve the thermal conductivity between the honeycomb filters F1.
- the inorganic binder contained in the sealing material layers 15a and 15b at least one or more colloidal sols selected from silica sol and alumina sol are desirable. Among them, it is particularly desirable to select silica sol. The reason is that silica sol is easily available and easily becomes Sio 2 by firing, so that it is suitable as an adhesive in a high temperature region. In addition, the silica sol has excellent insulating properties.
- the content of the silicic acid sol in the sealing material layers 15a and 15b is 1% to 30% by weight, preferably 1% by weight in solid content. It is 15% by weight, more preferably 5% to 9% by weight. When the content of the silica sol is less than 1% by weight, the adhesive strength is reduced.
- the thermal conductivity decreases.
- a hydrophilic organic polymer is preferable, and at least one or more polysaccharides selected from polyvinyl alcohol, methylcellulose, ethylsenololose and carboxymethylcellulose are preferable. More preferred. Among these, it is particularly desirable to select carboxymethylcellulose. The reason for this is that force / repoxymethinoresenorelose imparts excellent fluidity to the sinole material layers 15a and 15b, and therefore exhibits excellent adhesiveness in a normal temperature range.
- the content of carboxymethylcellulose in the sealing material layers 15a and 15b is 0.1% by weight to 5.0% by weight, preferably 0.2% by weight to 1.0% by weight, and more preferably 0.2% by weight to 1.0% by weight. 0.4 weight. /. ⁇ 0.6% by weight.
- migration means that when the sealing material layers 15 a and 15 b filled between the objects to be sealed harden, the binder in the sealing material layers 15 a and 15 b is It refers to the phenomenon that moves as the solvent is removed by drying.
- the content of carboxymethylcellulose exceeds 5.0% by weight, the organic binder is burned off by the high temperature, and the strength of the sealing material layers 15a and 15b decreases.
- the inorganic particles contained in the sealing material layers 15a and 15b are preferably at least one or more inorganic powders selected from silicon carbide, silicon nitride and boron nitride, or an elastic material using whiskers. .
- Such carbides and nitrides have very high thermal conductivity, and contribute to the improvement of thermal conductivity by being interposed between the surface of the ceramic fiber and the surface and inside of the colloidal sol.
- the honeycomb filter F1 which is the sealed body, is of the same type, that is, made of porous silicon carbide.
- the content of the silicon carbide powder is from 3% by weight to 80% by weight, preferably from 10% by weight to 60% by weight on a solid basis. / 0 , more preferably 20 to 40% by weight.
- the content of the silicon carbide powder is less than 3% by weight, the thermal conductivity of the sealing material layers 15a and 15 is low. As a result, the sealing material layers 15a and 15b still have a large thermal resistance.
- the content exceeds 80% by weight, the adhesive strength at high temperatures is reduced.
- the particle size of the silicon carbide powder is 0.1 ⁇ : I 0 Om, preferably 0.1 ⁇ ! 115 ⁇ m, more preferably 0.1 ⁇ m ⁇ 10 m. If the particle size exceeds 100 m, the adhesive strength and the thermal conductivity are reduced. On the other hand, when the particle size is less than 0.01 ⁇ m, the cost of the sealing material layers 15a and 15b is increased.
- the ceramic raw material slurry used in the extrusion molding process, the sealing paste used in the end face sealing process, and the sealing material layer forming paste used in the filter bonding process are prepared in advance.
- the ceramic raw material slurry a mixture obtained by mixing and kneading a predetermined amount of silicon carbide powder, organic pinder and water (and, in some cases, metallic silicon) is used.
- a sealing paste a mixture obtained by mixing and kneading silicon carbide powder, an organic piner, a lubricant, a plasticizer, and water is used.
- the sealing material layer forming paste a mixture obtained by mixing and kneading inorganic fibers, an inorganic binder, an organic binder, inorganic particles, and water in predetermined amounts, respectively, is used.
- the ceramic raw material slurry is put into an extruder and continuously extruded through a mold.
- the extruded honeycomb formed body is cut into equal lengths to obtain square-shaped honeycomb formed body cut pieces. Further, a predetermined amount of sealing paste is filled into one opening of each cell of the cut piece, and both end faces of each cut piece are sealed.
- main firing is performed by setting the temperature, time, and the like to predetermined conditions, and the honeycomb molded body cut pieces and the sealed body 14 are completely sintered.
- the firing temperature is set to 140 ° C. to 230 ° C. Set to 0.
- the firing time is set to 0.1 to 5 hours.
- the atmosphere in the furnace during firing is an inert atmosphere, and the pressure of the atmosphere at that time is normal pressure.
- a ceramic base layer is formed on the outer peripheral surface of the honeycomb filter F1, and then a sealing material layer forming paste is applied thereon. Then, 4 to 130 such honeycomb filters F1 are used, and the outer peripheral surfaces thereof are mutually exchanged. Attach it and stick it together.
- the thickness of the general outer 'ceramic sealing material layer is uniform.
- the portion of the outer ceramic sealing material layer that contacts the long side of the aggregate 9 is 15c, and the portion that contacts the short side of the aggregate 9 is the The thickness of the part 15c is defined as H1, and the thickness of the part 15d is defined as H2.
- the cell 12 that is, the concave portion is exposed on the peripheral surface of the aggregate 9 by grinding.
- the thickness of the ceramic sealing material layer is defined as the distance from the curved surface connecting the cell walls 13 a and 13 b of the exposed cell 12.
- a paste for forming a ceramic sealing material layer was applied so that the thickness of the intermediate portion between the portion 15c and the portion 15d gradually changed.
- the thickness of the ceramic sealing material layer can be adjusted by processing after application of the paste, or the ceramic sealing material is poured into a mold having such a thickness and dried to form the sealing material layer. You can.
- the ratio of H 2 / "HI is 0.95 or less. If the ratio H2ZH1 is larger than 0.95, the filter in the long side direction becomes easy to cool, and uniform temperature rise of the assembly 9 is achieved. It becomes difficult, and soot burns and eventually cracks.
- the ratio H2 / H1 is not less than 0.06. If the ratio H2 / H1 is less than 0.06, it becomes difficult to uniformly raise the temperature of the assembly 9 because the heat radiating property is reversed in the short side direction and the long side direction.
- the assembly 9 is wound around a heat insulating material 10 (see FIGS. 1 and 10 (c)) and housed in a casing 8.
- the heat insulating material usually has a uniform thickness.
- the thickness of the heat insulating material is in contact with the long side of the aggregate 9 and the short side of the aggregate 9 The part that is different from 16b.
- the thickness of the portion 16a is defined as I1
- the thickness of the portion 16b is defined as I2.
- the ratio of 12 to 11 be 0.91 or less. If the ratio I2ZI1 is larger than 0.91, the filter F1 near the outer side in the long side direction becomes easy to cool, and it becomes difficult to uniformly raise the temperature of the assembly 9, soot burns, and eventually cracks. Is more likely to occur. Conversely, the ratio I 2 ZI 1 is desirably 0.30 or more. If the ratio I 2/11 is less than 0.30, the heat dissipation of heat is reversed in the short side direction and the long side direction, so that it is difficult to uniformly raise the temperature of the assembly 9.
- a mat composed of general ceramic fiber, alumina fiber, or alumina silicate fiber can be used as the heat insulating material 10. Next, the function of trapping fine particles by the ceramic filter assembly 9 will be briefly described. .
- the exhaust gas is supplied from the upstream end face 9 of the ceramic filter assembly 9 and flows into the cell 12 opened at the upstream end face 9 ⁇ .
- the exhaust gas passes through the cell walls 13a and 13b and reaches the inside of the adjacent cell 12 which is open at the downstream end face 9J3.
- the passed gas flows out of the downstream end face 9) 3 of the honeycomb finoletor F 1 through the opening of the cell 12.
- the fine particles contained in the exhaust gas do not pass through the cell walls 13a and 13b, but are trapped there. Therefore, the gas (purified gas) from which the fine particles have been removed is discharged from the downstream end face 9 J3 of the Hucom filter F1.
- the purified gas passes through the second exhaust pipe 7 and is released into the atmosphere. When the internal temperature of the aggregate 9 reaches a predetermined temperature, the trapped fine particles are ignited and burned by the action of the catalyst.
- the cells (through holes) of the formed body were sealed with a sealing paste made of a porous silicon carbide sintered body.
- the sealing paste was dried using the dryer again.
- the dried product was degreased at 400 ° C., and then calcined at 2200 ° C. for about 3 hours in an argon atmosphere at normal pressure.
- a honeycomb filter F1 made of a porous silicon carbide sintered body was obtained. According to this method, filters having the dimensions shown in Table 1 were produced. The filter length is unified to 150 mm.
- each filter was gradually heated to 600 ° C or 800 ° C in an electric furnace and maintained at the target temperature for 3 hours. After that, it was taken out at room temperature at 20, and the filter was subjected to thermal shock. Table 1 shows the results of the presence or absence of cracks.
- the cells (through holes) of the formed body were sealed with a sealing paste made of a porous silicon carbide sintered body. Then, the sealing paste was dried again using a dryer. After the dried body was degreased at 400 ° C., it was baked at 1,500 ° C. for about 3 hours in an argon atmosphere at normal pressure. As a result, a honeycomb filter F1 made of a porous silicon carbide monometallic silicon sintered body was obtained. According to this method, filters having the dimensions shown in Table 2 were produced. The filter length is unified to 15 Omm. As in Test 1, a thermal shock test was performed.
- Test 3 a filter was manufactured in the same procedure as in Test 1. However, the inside diameter of the cell (through hole) has been changed. Table 3 shows the dimensions and the results of the thermal shock test. From these results, cracks occurred at a thermal shock of 600 ° C and 800 ° C if the ratio Cl_C2 was 3.07 or more. Therefore, it was found that if the ratio C 1 C 2 is 3.0 or less, it can sufficiently withstand a thermal shock of about 800 which can be used as a filter.
- Test 4 a filter was manufactured as in Test 2. However, the inside diameter of the cell (through hole) has been changed. Table 4 shows the dimensions and the results of the thermal shock test. From this result, at 600 ° C ! impact, cracks occur when the ratio C 12 is 3.20 or more, and at 800 ° C thermal shock, the ratio C 1 / "C 2 is 3.07 or more. Therefore, it was found that if the ratio C 1ZC2 was 3.0 or less, it could sufficiently withstand a thermal shock of about 800 ° C that could be used as a filter.
- Test 5 a filter was manufactured as in Test 1. However, the wall thickness has been changed. Table 5 shows the dimensions and the results of the thermal shock test. According to these results, cracks occurred at a thermal shock of 600 ° C. and 800 ° C. when the ratio D 1ZD2 was 3.03 or more. Therefore, it was found that if the ratio D 1 / D2 was 3.0 or less, it could sufficiently withstand a thermal shock of about 800 ° C. which could be used as a filter.
- a silicon carbide powder 5 1. and 5% by weight and ⁇ -type silicon carbide powder at 2 wt% wet mixed the resulting mixture into an organic binder (methyl cellulose) 6.5 weight 0 and water 20 wt% was added And kneaded.
- a small amount of a plasticizer and a lubricant were added to the kneaded material, and the mixture was further kneaded and extruded by changing the mold to obtain a honeycomb-shaped formed body.
- the cells 12 of the formed body are sealed with a sealing paste made of a porous silicon carbide sintered body, and a drying dryer is used.
- the sealing paste was dried.
- the dried product was degreased at 400 ° C., and then baked at 2200 DC for about 3 hours in an argon atmosphere at normal pressure.
- a honeycomb filter F1 made of a porous silicon carbide sintered body was obtained.
- each honeycomb filter F 1 is 66.9 mm
- the short side B 2 is 32.7 mm
- the length L is 150 mm
- the length of the long side and short side of the cell 12 is Both were 1.5 mm
- the thicknesses D l and 02 of the cell walls 13 a and 13 were both 0.3 mm.
- the paste used for forming the sealing material layers 15a, 15b, and 15c was prepared by adjusting the kneaded material to an appropriate viscosity.
- the ceramic fiber is an alumina silicate ceramic fiber having a shot content of 3% and a fiber length of 0.1 mm to 10 Omm, and the conversion amount of silica sol of SiO 2 is 30%.
- a paste for forming a sealing material layer was evenly applied to the outer peripheral surface of the honeycomb filter F1, thereby forming a 1.70-thick Oram thick layer material 15a and 15b.
- Nine honeycomb filters F1 were arranged in three rows and three columns in the same direction, and dried at 100 for 1 hour in a state where the outer peripheral surfaces were in close contact with each other. Thereby, the sealing material layers 15a and 15b are hardened, and the nine honeycomb filters F1 are integrated.
- An outer shape cutting step was performed to make the cross section of the aggregate of the nine honeycomb filters F1 integrated into an ellipse.
- the major axis A1 of the oval is 160 mm
- the minor axis A2 is 80 mm
- the ratio A1 / A2 Is 2.
- a 1.5-mm-thick sealing material layer 15c is applied to the outer periphery of the assembly, and the outer shape is cut and trimmed to form a ceramic with a substantially elliptical cross section as shown in Fig. 6 (a).
- a finoleta aggregate 9a was produced.
- thermocouple is embedded at one point P (T emp.) At almost the center of the honeycomb filter F1, and in FIG. 6 (a), indicated by ⁇ , ⁇ , ⁇ The temperature ⁇ , ⁇ / 3, ⁇ ⁇ of the honeycomb filter F1 at each location was measured over time.
- ⁇ is the temperature at the center of the filter
- ()) 3 is the temperature at a position 5 mm from the outermost periphery of the filter in the minor axis direction
- T7 is the temperature at 5 mm from the outermost periphery of the filter in the major axis direction.
- ⁇ ° C
- Example 1 After repeating the regeneration test a plurality of times (10 times), the aggregate 9a was taken out, and each honeycomb filter F1 was visually observed to investigate the degree of unburned soot and the state of crack generation.
- the maximum temperature difference ⁇ C) was about 50 ° C, and the value was extremely small.
- Comparative Examples 11-1 and 11-2 the aggregate 9 was manufactured basically in the same manner as in Example 1-1. However, in Comparative Example 1-1, the long side B 1 of each honeycomb filter F 1 was changed to 32.7 mm, the short side B 2 was changed to 32.7 mm, and the length L was changed to 150 mm. (Same as Test Reference Example 1.1 (Table 1)). The nine filters were assembled in three rows and three columns with the long sides B1 parallel to produce an assembly 9b having a circular cross section with a diameter of 8 Omm as shown in FIG. 6 (b).
- Comparative Example 1-2 the long side 81 of each honeycomb filter 1 was changed to 32.7 mm, the short side B 2 was changed to 32.7 mm, and the length L was changed to 150 mm (Test Reference Example 1.1) the same as) .
- the fifteen filters were assembled in three rows and five columns to produce an aggregate 9c having a substantially circular (160mm ⁇ 80rnm) cross section as shown in FIG. 6 (c).
- Example 11 The same test as in Example 11 was performed on the two types of aggregates 9b and 9c. That As a result, the maximum temperature difference ⁇ T (° C) was about 50 ° C in Comparative Example 1-1, and the value was extremely J / J. In addition, there was no soot remaining in the honeycomb honeycomb nose F1 with no slip, and no cracks were observed.
- ⁇ was about 100 ° C., which was a very large value.
- soot remained in the honeycomb filter F1 at the position of ⁇ , and cracks were observed.
- Examples 1-2 an aggregate was used in which the filters of Test Example 2.2 (Table 2) were assembled as shown in Fig. 6 (a).
- Comparative Examples 1-3 an aggregate in which the filters of Test Comparative Example 2.1 were assembled as shown in Fig. 6 (b) was used.
- Comparative Examples 1-4 the aggregate of the filter of Test Comparative Example 2.1 assembled as shown in Fig. 6 (c) was used.
- Table 7 the maximum temperature difference ⁇ was 60 ° C in Examples 1-2, while the temperature difference was 110 ° C or more in Comparative Examples 1-4, and T / A crack was found in the honeycomb filter at the position.
- Example 2— In each of Examples 2 to 4, the aggregate 9 was produced basically in the same manner as in Comparative Examples 1-3.
- Cell 1 2 5 honeycomb filters F 1 are arranged in parallel with the long side of cell 1 and 3 cells 1 2 are arranged vertically with 3 honeycomb filters F 1 vertically, and 15 honeycomb filters F 1 was assembled.
- an assembly 9 d (16 OmmX 8 OmmX 150 mm) having a substantially circular cross section shown in FIG. 7A was manufactured.
- Table 8 for Examples 2_2 to 2-4, cell 1
- This honeycomb filter F1 After assembling in 3 rows and 5 columns, the outer shape was cut to produce a 9e (16 OmmX 8 OmmX 15 Omm) assembly having a substantially elliptical cross section as shown in Fig. 7 (b). .
- Comparative Example 2-1 Comparative Example 2-1, Comparative Example 2-2, and Comparative Example 2-3, the maximum temperature difference ⁇ ⁇ (.C) was about 100 or more, and the value was very large. Soot remained in the honeycomb filter F1 at the position of ⁇ , and cracks were observed. In Comparative Examples 2-4, although the temperature difference was low, cracks were formed and cracks occurred.
- Examples 2-5 to 2-8 the aggregates obtained by assembling the filters of Test Examples 4.1 to 4.4 (Table 4) as shown in FIG. 7A were used.
- Comparative Examples 2-5 an aggregate in which the filters of Test Reference Example 4.1 were assembled as shown in Fig. 7 (b) was used.
- Comparative Examples 2-6 and 2-7 the aggregates obtained by assembling the filters of Test Examples 4.1 and 4-2 as shown in FIG. 7 (c) were used.
- Comparative Examples 2-8 an assembly in which the filters of the test Comparative Example 4.1 were assembled as shown in FIG. 7A was used.
- This honeycomb filter F 1 is arranged with five honeycomb filters F 1 in parallel with D 2, three honeycomb filters F 1 are arranged vertically with D 2, and an aggregate of 15 honeycomb filters F 1 is formed. Assembled. Then, the outer shape was cut to produce an assembly having a substantially elliptical cross section 9i (160 mm X 80 mm X 150 mm) as shown in FIG. 8 (c). Comparative Example 3-3 was manufactured in the same manner as Comparative Example 3-2, and Comparative Example 3-4 was manufactured in the same manner as Example 3-1.
- Example 3— :! 33-4 and Comparative Example 3—:! ⁇ 3-4 were examined for the maximum temperature difference T and the occurrence of cracks.
- the maximum temperature difference ⁇ (t) was 91 ° or less in Examples 3-1 to 3-4, and the soot remained unburned in any of the honeycomb filters F1. No cracking was observed.
- Comparative Example 3-1 Comparative Example 3-2, and Comparative Example 3-3, the maximum temperature difference ⁇ ( Is about 95 ° C or higher, the value is very large, soot remains in the honeycomb filter F1 at the position y, and cracks are observed. In Comparative Examples 3-4, although the temperature difference was low, cracks occurred.
- Examples 3-5 to 3-8 an aggregate in which the filters of Test Examples 6.1 to 6.4 (Table 6) were assembled as shown in FIG. 8A was used.
- Comparative Examples 3-5 an aggregate assembled as shown in FIG. 8B using the filter of Test Reference Example 6.3 was used.
- Comparative Examples 3-6 and 3-7 the aggregates assembled as shown in FIG. 8 (c) with the filters of Test Examples 6.1 and 6.4 (Table 6) were used, respectively.
- Comparative Examples 3-8 the aggregate assembled as shown in Fig. 8 (a) using the filter of Test Comparative Example 6.1 was used.
- the maximum temperature difference in Examples 3-5 to 3-8 was 10 It or less.
- the maximum temperature difference was 105 or more, and cracks occurred in the honeycomb filter at the position of y.
- Comparative Examples 318 although the temperature difference was low, cracks occurred.
- Comparative Examples 415 an assembly was basically produced in the same manner as in Comparative Examples 1-2, using the filter of Test Reference Example 2.1. However, in Comparative Example 4-5, the sealing material layer 1 5 a thickness E 1 of and l ram, the Shinore material layer 1 5 b of the thickness E 2 and 2mm, E 1 / ⁇ .2 - it was 0.5. (See Fig. 9 (c)).
- Examples 4-16 to 10-10, Comparative Example 4-14 The aggregates of 4 to 4_6 were examined for the maximum temperature difference—the occurrence of T human cracks.
- the temperature difference ⁇ — ⁇ was 80 in the example. C or less, and no soot remained in any of the honeycomb filters F1, and no cracking was observed.
- the temperature difference T) 3— ⁇ is 100 ° C or more, the value is very large, and the honeycomb at the V position Soot remained in the filter F 1 and cracks were observed.
- Comparative Examples 416 the temperature difference was reversed, and cracks occurred at the position of.
- Example 5-1 to 5-4 an assembly was manufactured basically in the same manner as in Comparative Examples 1-2 using the filter of Test Reference Example 1.1.
- the thermal conductivity G1 of the sealing material layer 15a was 0.2 W / m ⁇ K
- the thermal conductivity G2 of the sealing material layer 15b was 0.3 WZm * K.
- G 1 G 2 ⁇ 0.67. (See Figure 10 (a)).
- Example 5-1 to 5-4 and Comparative examples 5-1 to 5-3 the temperature difference ⁇ 1 ⁇ and the occurrence of cracks were examined.
- the temperature difference T j3 ⁇ ⁇ was 76 ° C. or less in Examples 5-1 to 5-4, and soot was burned in any of the honeycomb filters F 1. No cracks were found and no cracks were found.
- Examples 5-5 to 5-8 and Comparative Examples 5-4 to 5-6 also basically use the filter of Test Reference Example 2.1 and follow the description in Table 11 Made.
- the temperature difference ⁇ — ⁇ ⁇ is 80 ° C or less in Examples 5-5 to 5-8, and no soot remains in any of the honeycomb filters F1 and cracks occur. No live was found. However, in Comparative Examples 5-4 and 5-5, the temperature difference ⁇ - ⁇ : was 80 ° C or more, and the value was very large. Soot remained in F1 and cracks were observed. Further, in Comparative Examples 5-6, the temperature difference was reversed, and cracks occurred at the position (3).
- Example 6-1 to 6-4 an assembly was manufactured basically in the same manner as in Comparative Examples 1-2 using the filter of Test Reference Example 1.1.
- the thickness H1 of the outer peripheral sealing material layer 15c was 1.6 mm
- the thickness H2 of the outer peripheral sealing material layer 15d was 1.5 mm
- H2ZH 1-0.94 was adjusted so that the thickness of the outer peripheral sealing material layer gradually changed. Therefore, one of the thicknesses Hl and H2 is the maximum thickness and the minimum thickness of the outer peripheral sealing material layer.
- the temperature difference T / 3- ⁇ was less than 73 in Examples 6-1 to 6-4, and the soot remained unburned in any of the honeycomb filters F1. No cracks were observed.
- Comparative Example 6-1 and Comparative Example 6-2 the temperature difference — ⁇ - ⁇ ⁇ was 80 ° C or more, the value was very large, and the honeycomb filter / letter F 1 at the position of The soot was left unburned, and cracks were observed.
- Comparative Example 6-3 the temperature difference was reversed, and cracks occurred at the position of.
- Examples 6-5 to 6-8 and Comparative Examples 6-4 to 6-6 also have the same basic characteristics.
- Example 2.1 the filter of Test Reference Example 2.1 in accordance with the description in Table 12.
- Table 12 the temperature difference ⁇ - ⁇ a was determined in Examples 6-5 to 6-. In Fig. 8, the temperature was 80 ° C or less, and the soot remained in any honeycomb filter F1. No cracking was observed.
- Example 7-1 assemblies were basically manufactured in the same manner as in Comparative Example 1-2, using the filter of Test Reference Example 1.1.
- one of the thicknesses I 1 and I 2 is the maximum thickness and the minimum thickness of the heat insulating material.
- the temperature difference ⁇ -Ta was 73 ° C or less in Examples 7-1 to 7-8, and soot remained unburned in any of the honeycomb filters F1. No cracking was observed.
- Comparative Example 7-1 and Comparative Example 7-2 the temperature difference ⁇ - ⁇ was 80 ° C or more, and the value was very large. Soot was left unburned and cracks were found in the filter F 1. In Comparative Example 7-3, the temperature difference was reversed, and cracks occurred at the position) 3.
- Example 7-4 to Example 11 and Comparative Example 7-4 to Comparative Example 7_6 also basically follow the description in Table 13 using the filter of Test Reference Example 2.1. Made.
- the temperature difference T jS ⁇ ⁇ is 80 ° C. or less in Examples 7-4 to 7-6, and soot does not remain in the honeycomb filter F1 having a misalignment, and cracks occur. No live was found.
- a plurality of ceramic filters F1 having a rectangular cross section are arranged so that the long side of the ceramic filter F1 is in the major axis direction of the aggregate 9 and the short side of the ceramic filter F1 is in the minor axis direction of the aggregate 9.
- the assembly 9 is manufactured by bonding the ceramic filter F1 of FIG. This makes it possible to reduce the number of ceramic sealing material layers 15b that may affect heat conduction in the major axis direction of the aggregate 9. Therefore, during use, the thermal conductivity of the aggregate 9 in the major axis direction is higher than the thermal conductivity in the minor axis direction, and the peripheral filter F1 in the major axis direction is also easily heated. As a result, no unburned soot remains and cracks do not occur. In addition, since it can be easily achieved by changing the structure of ceramic of the same material without changing the material of the ceramic filter, cost can be reduced.
- the cells 12 in the columnar honeycomb filter F1 are rectangular, and by changing the thickness of the cell walls orthogonal to each other, it is possible to bias the thermal conductivity on the cross section of the filter. That is, the thermal conductivity in the direction along the thicker cell wall can be higher than the thermal conductivity in the direction along the thinner cell wall.
- a filter assembly can be made by making the major axis direction of the assembly and the thicker cell wall direction parallel, and conversely making the minor axis direction of the assembly and the thinner cell wall direction parallel.
- the thermal conductivity in the major axis direction is higher than the thermal conductivity in the minor axis direction of the assembly, and the filter F1 in the peripheral portion in the major axis direction is easily heated. For this reason, there is no burning residue of soot, and cracks do not occur.
- it can be easily achieved by changing the structure of ceramics of the same material without changing the material of the ceramic filter, so that the cost can be reduced.
- the thermal conductivity in the major axis direction is higher than that in the minor axis direction of the assembly during use. Can be done. Therefore, the filter F1 in the peripheral portion in the long diameter direction is easily heated, so that no unburned soot is left, and no crack is generated. In addition, it can be easily achieved by changing the structure of ceramics of the same material without changing the material of the ceramic filter, so that the cost can be reduced.
- the outer peripheral sealing material layer that hinders heat conduction is longer than the thickness H2 of the sealing material layer located on the shorter diameter extension line.
- the thickness of the heat insulating material 10 that hinders heat conduction is the portion 16 b located on the extension of the minor axis of the assembly 9.
- the thickness I1 of the portion 16a located on the extension of the major axis the radiation of heat from the peripheral part in the major axis direction is suppressed. Therefore, when used, a high heat insulating effect is generated in the peripheral portion of the aggregate in the major axis direction, soot remains unburned, and cracks do not occur.
- the cost can be reduced.
- the cross-sectional shape of the cell (through hole) of the columnar honeycomb filter made of a porous ceramic sintered body is rectangular, and the length of the long side is C l and the length of the short side is C.
- the ratio is 2, if the ratio C 1 / C 2 is 3.0 or less, cracks due to thermal shock are unlikely to occur. Therefore, the cross-sectional shape of the cell (through-hole) is considered to be more similar to the thermal shock resistance of a square filter, and a filter cut necessary for uniformly heating the flat filter assembly 9 is provided. be able to.
- the cell wall thickness of the columnar honeycomb filter made of porous ceramic sintered body consists of two types, the thick wall length is Dl, and the short wall length is D2. If the ratio D l ZD 2 is 3,0 or less, cracks due to thermal shock are unlikely to occur. For this reason, it is possible to provide a filter unit which is more likely to have the same thermal shock resistance as a filter having the same wall thickness, and is necessary for uniformly raising the temperature of the flat filter assembly 9.
- the cross-sectional shape of the honeycomb filter F1 may be rectangular, and the internal cells 12 may be rectangular in the same direction.
- the cross-sectional shape of the honeycomb filter F1 may be rectangular, and the thicker cell wall 13a of the inner cell walls 13a and 13b may be in the same direction as the long side.
- the cells of the honeycomb filter may be rectangular, and the long side cell wall may be thicker than the short side cell wall.
- the sealing material layer formed on the outer peripheral surface of the aggregate may be formed using two or more types of outer peripheral coating materials having different thermal conductivity.
- the heat insulating material 10 may be formed on the outer peripheral surface of the aggregate using two or more heat insulating materials having different thermal conductivity.
- Test reference example 5.2 1.5 0.37 1.87 18 34.03 0.4 0.37 1.08 '
- Test reference example 5.3 1.5 0.3 1.8 18 32.7 0.3 0.3 1.00 ⁇
- Test participant 6 2 1, 5 0.37 1.8 * 7 18 3403 0,4 0 37 1 1 08 None Test participant 6 3 1.5 0.3 1.8 18 32.7 0,3 0.3 1.00
- Test Example 6 1 1.5 0.35 1, 85 18 33,65 0.4 0.35 1.14
- FIG. 7 (b) Test Example 4.1 160 80 33 33 15 1.50 1.50 1.00 0.3 0.3 1.00 1.5 10 110 450 423 340 Yes Comparative Example 2-6 FIG 7 (c) Test Example 4.1 160 80 33 33 15 1.50 1.70 0.88 0.3 0.3 1.00 1.5 10 120 450 434 340 Yes Comparative Example 2-7 Figure 7 (c) Test Example 4.2 160 80 33 33 15 1.50 2.25 0.67 0.3 0.3 1.00 1.5 10 110 450 440 340 Yes Comparative Example 2 -8 Fig. 7 (a) Test comparison example 4.1 160 80 33 33 15 4.60 1.50 3.07 0.3 0.3 1.00 1.5 10 75 450 430 375 Yes
- Example 4- ⁇ Figure 9 (a) Example 1.1 160 80 33 33 15 1.50 1.50 1.00 0.3 0.3 1.00 1.05 1.05 1.5 10 75 450 425 350 None Example 4-2 H9 (a) Example 1.1 160 80. 33 33 15 1.50 1.50 1.00 0.3 0.3 1.00 2 1 2 1.5 10 75 450 425 350 None Example 4-3 Figure 9 (a) ⁇ Example 1.1 160 80 33 33 15 1.50 1.50 1.00 0.3 0.3 1.00 3 1 3 1.5 10 65 450 415 350 None Example 4-4 Figure 9 (a) Test reference example 1.1 160 80 33 33 15 1.50 1.50 1.00 0.3 0.3 1.00 4 1 4 1.5 10 20 450 370 350 None Example 4-5 Figure 9 (a) trial Example 1.1 160 80 33 33 15 1.50 1.50 1.00 0.3 0.3 1.00 5 5 1.5 10 0 450 350 350 'None Comparative Example 4-1 H9 (b) Sample # 1.1 160 80 33 33 15 1.50 1.50 1.00 0.3 0.3 1.00 1 1 1.5 10 80 450 43Q 350 Yes 4 2
- Example 4-6 Figure 9 (a) Test reference example 2.1 160 80 33 33 15 1.50 1.50 1.00 0.3 0.3 1.00 1.05 1.05 1 10 7 ⁇ 450 415 340
- Example 4-7 Figure 9 (a) Test reference example 2.1 160 80 33 33 15 1.50 1.50 1.00 0.3 0.3 1.00 2 2 1.5 10 75 450 415 340 None
- Example 4-9 Figure 9 (a ) test example 2.1 160 80 33 33 15 1.50 1.50 1.00 0.3 0.3 1.00 4 4 1.5 10 25 450 365 340 No example 4 10 FIG.
- Example 5-1 Figure 10 (a) Test Reference Example 1.1 160 80 33 33 15 31.10 15.00 14.40 0.50 39.00 1 1 1 0.2 0.3 0.67 1.5 10 76 450 426 350 None Example 5-2 Figure 10 (a) Test Reference Example 1.1 160 80 33 33 15 34.00 7.50 19.00 0.50 39.00 1 1 1 0.15 0.3 0.50 1.5 10 75 450 425 350 None Example 5-3 Figure 10 (a) Test Reference Example 1.1 160 80 33 33 15 30.30 3.00 27.20 0.50 39.00 1 1 1 1 0.1 0.3 0.33 1.5 10 65 450 415 350 None Example 5-4 Figure 10 (a) Test Reference Example 1.1 160 80 33 33 15 31.30 0.50 28.70 0,50 39.00 1 1 1 0.06 0.3 0.20 1.5 10 0 450 "350 350 No Comparative Example 5 1 Figure 10 (b) Test Reference Example 1.1 160 80 33 33 15 23.30 30.20 7.00 0.50 39.00 1 1 1 0.3 0.3 1.00 1.5 10 80 450 430 350 Yes Comparative Example 5-2 Figure 10 (c) Test Reference
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/502,044 US7393376B2 (en) | 2002-03-15 | 2003-03-17 | Ceramic filter for exhaust gas emission control |
DE60317778T DE60317778T2 (de) | 2002-03-15 | 2003-03-17 | Keramikfilter zur abgasreinigung |
EP03708649A EP1486242B1 (en) | 2002-03-15 | 2003-03-17 | Ceramic filter for exhaust gas purification |
JP2003576077A JPWO2003078026A1 (ja) | 2002-03-15 | 2003-03-17 | 排気ガス処理用セラミックフィルタ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-72847 | 2002-03-15 | ||
JP2002072847 | 2002-03-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003078026A1 true WO2003078026A1 (fr) | 2003-09-25 |
Family
ID=28035197
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/003183 WO2003078026A1 (fr) | 2002-03-15 | 2003-03-17 | Filtre de ceramique destine au controle de l'emission de gaz d'echappement |
Country Status (6)
Country | Link |
---|---|
US (1) | US7393376B2 (ja) |
EP (8) | EP1604724B1 (ja) |
JP (1) | JPWO2003078026A1 (ja) |
AT (7) | ATE374067T1 (ja) |
DE (8) | DE60321831D1 (ja) |
WO (1) | WO2003078026A1 (ja) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005144250A (ja) * | 2003-11-12 | 2005-06-09 | Ngk Insulators Ltd | ハニカム構造体 |
WO2005108328A1 (ja) | 2004-05-06 | 2005-11-17 | Ibiden Co., Ltd. | ハニカム構造体及びその製造方法 |
WO2006082684A1 (ja) * | 2005-02-01 | 2006-08-10 | Ibiden Co., Ltd. | ハニカム構造体 |
WO2006126507A1 (ja) * | 2005-05-23 | 2006-11-30 | Ngk Insulators, Ltd. | ハニカム構造体 |
JP2007014886A (ja) * | 2005-07-07 | 2007-01-25 | Ngk Insulators Ltd | ハニカム構造体 |
EP1584801A3 (de) * | 2004-04-05 | 2007-04-18 | Arvin Technologies, Inc. | Vorrichtung zum Reinigen von Fahrzeugabgasen, insbesondere Dieselrussfilter, und Fahrzeug mit entsprechender Vorrichtung |
US7510588B2 (en) | 2002-03-29 | 2009-03-31 | Ibiden Co., Ltd. | Ceramic filter and exhaust gas decontamination unit |
US7662204B2 (en) * | 2004-08-03 | 2010-02-16 | Emcon Technologies Llc | Device for purifying exhaust gases of a motor vehicle and method for the production thereof |
EP2236482A2 (en) | 2009-03-26 | 2010-10-06 | NGK Insulators, Ltd. | Ceramic honeycomb structure |
JP2010234243A (ja) * | 2009-03-31 | 2010-10-21 | Ngk Insulators Ltd | ハニカム構造体及びその製造方法 |
US7846526B2 (en) | 2004-12-27 | 2010-12-07 | Ibiden Co., Ltd | Honeycomb structural body and sealing material layer |
US8137428B2 (en) * | 2006-06-27 | 2012-03-20 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas purification apparatus for internal combustion engine |
WO2012121331A1 (ja) * | 2011-03-10 | 2012-09-13 | 日本碍子株式会社 | ハニカム構造体 |
JP2013024221A (ja) * | 2011-07-26 | 2013-02-04 | Ngk Insulators Ltd | ハニカム構造体、ハニカム触媒体及び排ガス処理装置 |
JP2014117662A (ja) * | 2012-12-18 | 2014-06-30 | Ngk Insulators Ltd | 微粒子捕集フィルタ |
TWI581846B (zh) * | 2014-12-31 | 2017-05-11 | Chane Yu Lai | Removable filter device |
KR101817046B1 (ko) * | 2008-08-27 | 2018-01-09 | 비다 홀딩스 코포레이션 리미티드 | 촉매 변환 장치 |
Families Citing this family (103)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1516659B1 (en) * | 1999-09-29 | 2006-12-13 | Ibiden Co., Ltd. | Honeycomb filter and ceramic filter assembly |
EP1724448B2 (en) * | 2002-02-05 | 2013-11-20 | Ibiden Co., Ltd. | Honeycomb filter for purifyng exhaust gases, adhesive, coating material, and manufacturing method of honeycomb filter for purifying exhaust gases |
US20050169819A1 (en) * | 2002-03-22 | 2005-08-04 | Ibiden Co., Ltd | Honeycomb filter for purifying exhaust gas |
DE20321503U1 (de) * | 2002-09-13 | 2007-08-30 | Ibiden Co., Ltd., Ogaki | Wabenstrukturkörper |
WO2005026074A1 (ja) * | 2003-09-12 | 2005-03-24 | Ibiden Co., Ltd. | セラミック焼結体およびセラミックフィルタ |
JP4815108B2 (ja) * | 2003-12-26 | 2011-11-16 | イビデン株式会社 | ハニカム構造体 |
EP1952871B1 (en) * | 2004-05-18 | 2016-10-19 | Ibiden Co., Ltd. | Exhaust gas purifying device and its holding sealing material |
EP1787968B1 (en) * | 2004-09-30 | 2012-12-12 | Ibiden Co., Ltd. | Method for manufacturing porous article, porous article and honeycomb structure |
DE602005019182D1 (de) | 2004-09-30 | 2010-03-18 | Ibiden Co Ltd | Wabenstruktur |
DE602005015610D1 (de) * | 2004-10-12 | 2009-09-03 | Ibiden Co Ltd | Keramische wabenstruktur |
JP5142532B2 (ja) * | 2004-11-26 | 2013-02-13 | イビデン株式会社 | ハニカム構造体 |
JP4870657B2 (ja) * | 2005-02-04 | 2012-02-08 | イビデン株式会社 | セラミックハニカム構造体およびその製造方法 |
JP2006223983A (ja) * | 2005-02-17 | 2006-08-31 | Ibiden Co Ltd | ハニカム構造体 |
WO2006092986A1 (ja) * | 2005-03-02 | 2006-09-08 | Ibiden Co., Ltd. | 無機繊維集合体、無機繊維集合体の製造方法、ハニカム構造体及びハニカム構造体の製造方法 |
JP4870559B2 (ja) | 2005-03-28 | 2012-02-08 | イビデン株式会社 | ハニカム構造体 |
JP4937116B2 (ja) * | 2005-04-28 | 2012-05-23 | イビデン株式会社 | ハニカム構造体 |
EP1752390B1 (en) * | 2005-06-06 | 2011-09-28 | Ibiden Co., Ltd. | Use of packaging material and method of transporting honeycomb structure |
WO2006137150A1 (ja) | 2005-06-24 | 2006-12-28 | Ibiden Co., Ltd. | ハニカム構造体 |
WO2006137161A1 (ja) | 2005-06-24 | 2006-12-28 | Ibiden Co., Ltd. | ハニカム構造体 |
EP1832565A4 (en) * | 2005-08-03 | 2007-10-17 | Ibiden Co Ltd | TEMPLATE FOR COOKING SILICON CARBIDE AND PROCESS FOR PRODUCING POROUS SILICON CARBIDE BODY |
DE102005045015A1 (de) * | 2005-09-21 | 2007-03-29 | Robert Bosch Gmbh | Filterelement und Rußfilter mit verbesserter Thermoschockbeständigkeit |
CN101242937B (zh) * | 2005-10-05 | 2011-05-18 | 揖斐电株式会社 | 挤压成形用模具和多孔质陶瓷部件的制造方法 |
KR100831836B1 (ko) * | 2005-10-12 | 2008-05-28 | 이비덴 가부시키가이샤 | 벌집형 유닛 및 벌집형 구조체 |
CN101061293B (zh) * | 2005-11-18 | 2011-12-21 | 揖斐电株式会社 | 蜂窝结构体 |
WO2007074508A1 (ja) * | 2005-12-26 | 2007-07-05 | Ibiden Co., Ltd. | ハニカム構造体の製造方法 |
WO2007074528A1 (ja) * | 2005-12-27 | 2007-07-05 | Ibiden Co., Ltd. | 脱脂用治具、セラミック成形体の脱脂方法、及び、ハニカム構造体の製造方法 |
WO2007086143A1 (ja) * | 2006-01-30 | 2007-08-02 | Ibiden Co., Ltd. | ハニカム構造体の検査方法、及び、ハニカム構造体の製造方法 |
WO2007094075A1 (ja) * | 2006-02-17 | 2007-08-23 | Ibiden Co., Ltd. | 乾燥用治具組立装置、乾燥用治具分解装置、乾燥用治具循環装置、セラミック成形体の乾燥方法、及び、ハニカム構造体の製造方法 |
JPWO2007097056A1 (ja) * | 2006-02-23 | 2009-07-09 | イビデン株式会社 | ハニカム構造体および排ガス浄化装置 |
WO2007097004A1 (ja) * | 2006-02-24 | 2007-08-30 | Ibiden Co., Ltd. | 湿式混合機、湿式混合方法及びハニカム構造体の製造方法 |
WO2007097000A1 (ja) * | 2006-02-24 | 2007-08-30 | Ibiden Co., Ltd. | ハニカム成形体用封口装置、封止材ペーストの充填方法、及び、ハニカム構造体の製造方法 |
WO2007096986A1 (ja) | 2006-02-24 | 2007-08-30 | Ibiden Co., Ltd. | 端面加熱装置、ハニカム集合体の端面乾燥方法、及び、ハニカム構造体の製造方法 |
DE602006002244D1 (de) * | 2006-02-28 | 2008-09-25 | Ibiden Co Ltd | Trageelement für Trocknung, Trocknungsverfahren eines Presslings mit Wabenstruktur, und Verfahren zur Herstellung eines Wabenkörpers. |
WO2007102216A1 (ja) * | 2006-03-08 | 2007-09-13 | Ibiden Co., Ltd. | 脱脂炉投入装置、及び、ハニカム構造体の製造方法 |
WO2007102217A1 (ja) * | 2006-03-08 | 2007-09-13 | Ibiden Co., Ltd. | 焼成体用冷却機、焼成炉、セラミック焼成体の冷却方法、及び、ハニカム構造体の製造方法 |
WO2007108076A1 (ja) * | 2006-03-17 | 2007-09-27 | Ibiden Co., Ltd. | 乾燥装置、セラミック成形体の乾燥方法及びハニカム構造体の製造方法 |
WO2007116529A1 (ja) * | 2006-04-11 | 2007-10-18 | Ibiden Co., Ltd. | 成形体切断装置、セラミック成形体の切断方法、及び、ハニカム構造体の製造方法 |
WO2007122680A1 (ja) * | 2006-04-13 | 2007-11-01 | Ibiden Co., Ltd. | 押出成形機、押出成形方法及びハニカム構造体の製造方法 |
WO2007122707A1 (ja) * | 2006-04-19 | 2007-11-01 | Ibiden Co., Ltd. | ハニカム構造体の製造方法 |
WO2007122715A1 (ja) * | 2006-04-20 | 2007-11-01 | Ibiden Co., Ltd. | ハニカム焼成体の検査方法、及び、ハニカム構造体の製造方法 |
WO2007122716A1 (ja) * | 2006-04-20 | 2007-11-01 | Ibiden Co., Ltd. | 搬送装置、及び、ハニカム構造体の製造方法 |
WO2007129391A1 (ja) * | 2006-05-01 | 2007-11-15 | Ibiden Co., Ltd. | 焼成用治具組立装置、焼成用治具分解装置、循環装置、セラミック成形体の焼成方法、及び、ハニカム構造体の製造方法 |
WO2007129399A1 (ja) * | 2006-05-08 | 2007-11-15 | Ibiden Co., Ltd. | ハニカム構造体の製造方法、ハニカム成形体受取機及びハニカム成形体取出機 |
WO2007132530A1 (ja) * | 2006-05-17 | 2007-11-22 | Ibiden Co., Ltd. | ハニカム成形体用端面処理装置、ハニカム成形体の封止方法、及び、ハニカム構造体の製造方法 |
WO2007138701A1 (ja) * | 2006-05-31 | 2007-12-06 | Ibiden Co., Ltd. | 把持装置、及び、ハニカム構造体の製造方法 |
ATE425852T1 (de) * | 2006-07-07 | 2009-04-15 | Ibiden Co Ltd | Apparat und verfahren zur bearbeitung der endflache eines wabenkírpers und verfahren zur herstellung eines wabenkírpers |
US7611561B2 (en) * | 2006-07-20 | 2009-11-03 | Benteler Automotive Corporation | Diesel exhaust filter construction |
WO2008032390A1 (fr) * | 2006-09-14 | 2008-03-20 | Ibiden Co., Ltd. | Procédé de production d'une structure en nid d'abeille |
ATE470649T1 (de) * | 2006-09-14 | 2010-06-15 | Ibiden Co Ltd | Verfahren zur herstellung eines wabenkörpers und zusammensetzung für sinterwabenkörper |
WO2008032391A1 (fr) * | 2006-09-14 | 2008-03-20 | Ibiden Co., Ltd. | Procédé de production d'une structure en nid d'abeille et composition de matière première pour nid d'abeille calciné |
WO2008047404A1 (fr) * | 2006-10-16 | 2008-04-24 | Ibiden Co., Ltd. | Support de montage pour structure alvéolaire et dispositif d'inspection pour structure alvéolaire |
DE102006057280A1 (de) * | 2006-12-05 | 2008-06-12 | Robert Bosch Gmbh | Durch Extrudieren hergestelltes Filterelement zur Filterung von Abgasen einer Diesel-Brennkraftmaschine |
JP5084517B2 (ja) * | 2007-01-26 | 2012-11-28 | イビデン株式会社 | 外周層形成装置 |
WO2008105081A1 (ja) * | 2007-02-28 | 2008-09-04 | Ibiden Co., Ltd. | ハニカムフィルタ |
WO2008105082A1 (ja) * | 2007-02-28 | 2008-09-04 | Ibiden Co., Ltd. | ハニカム構造体 |
WO2008120291A1 (ja) * | 2007-02-28 | 2008-10-09 | Ibiden Co., Ltd. | ハニカム構造体の製造方法 |
DE102007013681A1 (de) * | 2007-03-22 | 2008-09-25 | Robert Bosch Gmbh | Filter- und Katalysatorelement mit erhöhter thermomechanischer Stabilität |
WO2008126332A1 (ja) | 2007-03-30 | 2008-10-23 | Ibiden Co., Ltd. | ハニカムフィルタ |
CN101421016B (zh) * | 2007-03-30 | 2012-04-25 | 揖斐电株式会社 | 蜂窝结构体和蜂窝结构体的制造方法 |
JPWO2008126329A1 (ja) * | 2007-03-30 | 2010-07-22 | イビデン株式会社 | ハニカムフィルタ |
JP5063604B2 (ja) * | 2007-03-30 | 2012-10-31 | イビデン株式会社 | ハニカムフィルタ |
WO2008126321A1 (ja) * | 2007-03-30 | 2008-10-23 | Ibiden Co., Ltd. | 排ガス浄化システム |
WO2008126330A1 (ja) * | 2007-03-30 | 2008-10-23 | Ibiden Co., Ltd. | ハニカム構造体 |
WO2008126333A1 (ja) * | 2007-03-30 | 2008-10-23 | Ibiden Co., Ltd. | ハニカム構造体 |
WO2008126334A1 (ja) * | 2007-03-30 | 2008-10-23 | Ibiden Co., Ltd. | ハニカム構造体の製造方法 |
WO2008126320A1 (ja) * | 2007-03-30 | 2008-10-23 | Ibiden Co., Ltd. | ハニカム構造体の製造方法 |
WO2008136078A1 (ja) * | 2007-04-20 | 2008-11-13 | Ibiden Co., Ltd. | ハニカムフィルタ |
CA2683133A1 (en) * | 2007-05-04 | 2008-11-13 | Dow Global Technologies Inc. | Improved honeycomb filters |
WO2008139581A1 (ja) * | 2007-05-09 | 2008-11-20 | Ibiden Co., Ltd. | 炭化ケイ素焼成用原料の製造方法、及び、ハニカム構造体の製造方法 |
WO2008139608A1 (ja) * | 2007-05-14 | 2008-11-20 | Ibiden Co., Ltd. | ハニカム構造体及び該ハニカム構造体の製造方法 |
WO2008149435A1 (ja) * | 2007-06-06 | 2008-12-11 | Ibiden Co., Ltd. | 焼成用治具及びハニカム構造体の製造方法 |
WO2008155856A1 (ja) | 2007-06-21 | 2008-12-24 | Ibiden Co., Ltd. | ハニカム構造体、及び、ハニカム構造体の製造方法 |
WO2009022015A2 (en) * | 2007-08-16 | 2009-02-19 | Notox A/S | A method of encasing a filter element, an encased filter element and an apparatus for processing a sintered filter element |
WO2009057213A1 (ja) * | 2007-10-31 | 2009-05-07 | Ibiden Co., Ltd. | ハニカム構造体用梱包体、及び、ハニカム構造体の輸送方法 |
WO2009066388A1 (ja) * | 2007-11-21 | 2009-05-28 | Ibiden Co., Ltd. | ハニカム構造体及びハニカム構造体の製造方法 |
WO2009101683A1 (ja) | 2008-02-13 | 2009-08-20 | Ibiden Co., Ltd. | ハニカム構造体の製造方法 |
WO2009101682A1 (ja) * | 2008-02-13 | 2009-08-20 | Ibiden Co., Ltd. | ハニカム構造体、排ガス浄化装置、及び、ハニカム構造体の製造方法 |
JPWO2009107230A1 (ja) * | 2008-02-29 | 2011-06-30 | イビデン株式会社 | ハニカム構造体用シール材、ハニカム構造体、及び、ハニカム構造体の製造方法 |
WO2009118813A1 (ja) * | 2008-03-24 | 2009-10-01 | イビデン株式会社 | ハニカム構造体及びハニカム構造体の製造方法 |
WO2009118814A1 (ja) * | 2008-03-24 | 2009-10-01 | イビデン株式会社 | ハニカムフィルタ |
WO2009118875A1 (ja) * | 2008-03-27 | 2009-10-01 | イビデン株式会社 | ハニカム構造体 |
WO2009118862A1 (ja) * | 2008-03-27 | 2009-10-01 | イビデン株式会社 | ハニカム構造体の製造方法 |
WO2009141892A1 (ja) * | 2008-05-20 | 2009-11-26 | イビデン株式会社 | ハニカム構造体 |
KR101160103B1 (ko) | 2008-05-20 | 2012-06-26 | 이비덴 가부시키가이샤 | 허니컴 구조체 |
USD647607S1 (en) | 2008-05-27 | 2011-10-25 | Ibiden Co., Ltd. | Particulate filter for diesel engine |
JP5352676B2 (ja) * | 2008-11-06 | 2013-11-27 | ルノー・トラックス | 内燃機関システム、並びに内燃機関システムの微粒子フィルター装置 |
US20100154370A1 (en) * | 2008-12-22 | 2010-06-24 | Caterpillar Inc, | System and methods for particulate filter |
CN102470359B (zh) * | 2009-06-29 | 2014-06-25 | 陶氏环球技术有限责任公司 | 用于制造耐热震性陶瓷蜂窝结构体的含多模纤维的胶接剂 |
US20110067386A1 (en) * | 2009-09-22 | 2011-03-24 | Gm Global Technology Operations, Inc. | Oxidizing Particulate Filter |
FR2951652B1 (fr) * | 2009-10-28 | 2011-11-11 | Saint Gobain Ct Recherches | Corps filtrant assemble a resistance thermique specifique variable selon la longueur. |
WO2011051901A1 (fr) * | 2009-10-28 | 2011-05-05 | Saint-Gobain Centre De Recherches Et D'etudes Europeen | Corps filtrant assemblé à résistance thermique spécifique variable |
FR2951651B1 (fr) * | 2009-10-28 | 2011-11-11 | Saint Gobain Ct Recherches | Corps filtrant assemble a resistance thermique specifique variable. |
DE102010022539A1 (de) * | 2010-06-02 | 2011-12-08 | Bayerische Motoren Werke Aktiengesellschaft | Partikelfilteranordnung |
US9586339B2 (en) | 2011-08-26 | 2017-03-07 | Dow Global Technologies Llc | Process for preparing ceramic bodies |
US9260999B2 (en) | 2012-07-19 | 2016-02-16 | Vida Fresh Air Corp. | Apparatus and method for engine backpressure reduction |
US9737851B2 (en) | 2012-08-24 | 2017-08-22 | Advanced Technology Emission Solutions Inc. | Process for manufacturing a component for a catalytic converter |
JP6114023B2 (ja) * | 2012-12-18 | 2017-04-12 | 日本碍子株式会社 | 微粒子捕集フィルタ |
RU2650242C2 (ru) | 2014-01-17 | 2018-04-11 | Вайда Холдингз Корп. Лтд. | Способ определения размеров и расположения изоляции каталитического нейтрализатора выхлопных газов |
KR101414039B1 (ko) * | 2014-01-22 | 2014-07-02 | 주식회사 에코프로 | 마이크로웨이브를 이용한 휘발성 유기화합물 제거시스템 |
JP6492495B2 (ja) * | 2014-01-27 | 2019-04-03 | 株式会社デンソー | 排ガス浄化フィルタ及びその製造方法 |
JP2016153622A (ja) * | 2015-02-20 | 2016-08-25 | 日本碍子株式会社 | ハニカム型加熱装置及びその使用方法 |
JP6385295B2 (ja) * | 2015-02-25 | 2018-09-05 | 日本碍子株式会社 | ハニカム構造体 |
JP6620049B2 (ja) | 2016-03-25 | 2019-12-11 | 日本碍子株式会社 | ハニカム構造体 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06241018A (ja) * | 1993-02-17 | 1994-08-30 | Ibiden Co Ltd | 排気ガス浄化装置 |
US6159578A (en) * | 1998-05-12 | 2000-12-12 | Ngk Insulators, Ltd. | Hexagonal-cell honeycomb structure and method for fixation thereof |
JP2001170426A (ja) * | 1999-12-14 | 2001-06-26 | Ibiden Co Ltd | ハニカムフィルタおよびその製造方法 |
JP2002054422A (ja) * | 2000-08-08 | 2002-02-20 | Ngk Insulators Ltd | セラミック製フィルター及びその製造方法 |
JP2002273130A (ja) * | 2001-03-22 | 2002-09-24 | Ngk Insulators Ltd | ハニカム構造体 |
JP2003117320A (ja) * | 2001-10-09 | 2003-04-22 | Ngk Insulators Ltd | ハニカムフィルター |
Family Cites Families (64)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4276071A (en) * | 1979-12-03 | 1981-06-30 | General Motors Corporation | Ceramic filters for diesel exhaust particulates |
US4417908A (en) | 1982-02-22 | 1983-11-29 | Corning Glass Works | Honeycomb filter and method of making it |
JPS5939719U (ja) | 1982-09-07 | 1984-03-14 | トヨタ自動車株式会社 | 触媒式排気ガス浄化装置 |
JPS6065219A (ja) | 1983-09-20 | 1985-04-15 | Nissan Motor Co Ltd | 内燃機関のパ−テイキユレ−トトラツプ |
FR2585071B1 (fr) | 1985-07-16 | 1987-11-27 | Peugeot Cycles | Pot d'echappement pour vehicule automobile ou analogue |
JPH0659407B2 (ja) * | 1985-11-12 | 1994-08-10 | 松下電器産業株式会社 | ハニカム形状体 |
US4782661A (en) | 1987-02-13 | 1988-11-08 | General Motors Corporation | Mat support/substrate subassembly and method of making a catalytic converter therewith |
EP0299626B1 (en) | 1987-06-18 | 1993-02-17 | Fibre Techniques Limited | Method of protecting and insulating a catalytic converter block |
US5242871A (en) * | 1988-02-29 | 1993-09-07 | Nippon Pillar Packing Co., Ltd. | Heat-resistant expansion member |
JP2601879B2 (ja) * | 1988-06-21 | 1997-04-16 | 三郎 松井 | 有機性排水の嫌気性処理装置 |
ES2057836T3 (es) * | 1991-01-03 | 1994-10-16 | Scambia Ind Dev Ag | Catalizador y procedimiento para la fabricacion de un catalizador. |
JPH04279717A (ja) * | 1991-03-08 | 1992-10-05 | Ngk Insulators Ltd | 内燃機関の排気ガス浄化装置 |
JPH05302506A (ja) * | 1992-04-24 | 1993-11-16 | Nippondenso Co Ltd | 排気ガス浄化装置 |
JP2664119B2 (ja) * | 1992-11-20 | 1997-10-15 | 日本碍子株式会社 | 曲りハニカム構造体 |
DE4341159B4 (de) * | 1993-12-02 | 2009-02-05 | Argillon Gmbh | Wabenförmiger Katalysator und Verfahren zu seiner Herstellung |
JPH07204500A (ja) | 1994-01-24 | 1995-08-08 | Babcock Hitachi Kk | ハニカム構造体 |
WO1997025203A1 (fr) * | 1994-07-14 | 1997-07-17 | Ibiden Co., Ltd. | Structure ceramique |
US5686039A (en) | 1995-06-30 | 1997-11-11 | Minnesota Mining And Manufacturing Company | Methods of making a catalytic converter or diesel particulate filter |
US5657626A (en) * | 1995-12-22 | 1997-08-19 | Corning Incorporated | Exhaust system with a negative flow fluidics apparatus |
US5930994A (en) | 1996-07-02 | 1999-08-03 | Ibiden Co., Ltd. | Reverse cleaning regeneration type exhaust emission control device and method of regenerating the same |
DE29611788U1 (de) | 1996-07-06 | 1996-09-05 | Gillet Heinrich Gmbh | Abgaskatalysator |
EP0856646A1 (en) * | 1997-02-03 | 1998-08-05 | Corning Incorporated | Method of making a catalytic converter for use in an internal combustion engine |
JP2000167329A (ja) | 1998-09-30 | 2000-06-20 | Ibiden Co Ltd | 排気ガス浄化装置の再生システム |
JP2002530175A (ja) | 1998-11-20 | 2002-09-17 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | コードレス走査ヘッドの充電器を備える超音波診断イメージングシステム |
US6317976B1 (en) * | 1998-12-28 | 2001-11-20 | Corning Incorporated | Method of making a catalytic converter for use in an internal combustion engine |
JP4409657B2 (ja) * | 1999-03-30 | 2010-02-03 | イビデン株式会社 | フィルタの製造方法 |
JP3803009B2 (ja) * | 1999-09-29 | 2006-08-02 | イビデン株式会社 | セラミックフィルタ集合体 |
JP2001162119A (ja) * | 1999-09-29 | 2001-06-19 | Ibiden Co Ltd | セラミックフィルタ集合体 |
EP1516659B1 (en) * | 1999-09-29 | 2006-12-13 | Ibiden Co., Ltd. | Honeycomb filter and ceramic filter assembly |
JP2001329830A (ja) | 2000-03-15 | 2001-11-30 | Ibiden Co Ltd | 排気ガス浄化フィルタの再生装置及びフィルタ再生方法、排気ガス浄化フィルタの再生プログラム及びそのプログラムを格納する記録媒体 |
JP4511065B2 (ja) * | 2000-06-05 | 2010-07-28 | 日本碍子株式会社 | ハニカム構造体とハニカムフィルター、及びそれらの製造方法 |
EP1360991B1 (en) * | 2000-08-03 | 2013-07-17 | NGK Insulators, Ltd. | Ceramic honeycomb structure |
ATE330111T1 (de) | 2001-03-22 | 2006-07-15 | Ibiden Co Ltd | Abgasreinigungsvorrichtung |
JPWO2002096827A1 (ja) | 2001-05-31 | 2004-09-09 | イビデン株式会社 | 多孔質セラミック焼結体及びその製造方法、ディーゼルパティキュレートフィルタ |
JP3983117B2 (ja) * | 2001-07-31 | 2007-09-26 | 日本碍子株式会社 | ハニカム構造体及びその製造方法 |
JP4282960B2 (ja) * | 2001-08-30 | 2009-06-24 | 日本碍子株式会社 | 高強度ハニカム構造体、その成形方法及びハニカム構造コンバーター |
EP1724448B2 (en) * | 2002-02-05 | 2013-11-20 | Ibiden Co., Ltd. | Honeycomb filter for purifyng exhaust gases, adhesive, coating material, and manufacturing method of honeycomb filter for purifying exhaust gases |
EP1484481A4 (en) | 2002-02-21 | 2006-10-04 | Ibiden Co Ltd | EXHAUST EMISSION CONTROL DEVICE AND HOUSING STRUCTURE OF THE CONTROL DEVICE |
JPWO2003074848A1 (ja) | 2002-03-04 | 2005-06-30 | イビデン株式会社 | 排気ガス浄化用ハニカムフィルタ及び排気ガス浄化装置 |
US20050169819A1 (en) * | 2002-03-22 | 2005-08-04 | Ibiden Co., Ltd | Honeycomb filter for purifying exhaust gas |
EP1491249A4 (en) | 2002-03-25 | 2005-04-13 | Ibiden Co Ltd | FILTER FOR DECONTAMINATION OF EXHAUST GASES |
JPWO2003084640A1 (ja) | 2002-04-09 | 2005-08-11 | イビデン株式会社 | 排気ガス浄化用ハニカムフィルタ |
EP1493904B1 (en) | 2002-04-10 | 2016-09-07 | Ibiden Co., Ltd. | Honeycomb filter for clarifying exhaust gas |
US20050153099A1 (en) | 2002-04-11 | 2005-07-14 | Ibiden Co. Ltd. | Honeycomb filter for clarifying exhaust gases |
WO2004031100A1 (ja) | 2002-10-07 | 2004-04-15 | Ibiden Co., Ltd. | ハニカム構造体 |
EP1550646A4 (en) | 2002-10-07 | 2006-04-26 | Ibiden Co Ltd | HONEYCOMB STRUCTURE BODY |
DE602004029140D1 (de) | 2003-02-28 | 2010-10-28 | Ibiden Co Ltd | Keramische wabenstruktur |
WO2004106702A1 (ja) | 2003-05-06 | 2004-12-09 | Ibiden Co. Ltd. | ハニカム構造体 |
WO2004111398A1 (ja) | 2003-06-05 | 2004-12-23 | Ibiden Co., Ltd. | ハニカム構造体 |
JP4509029B2 (ja) | 2003-06-10 | 2010-07-21 | イビデン株式会社 | ハニカム構造体 |
WO2005002709A1 (ja) | 2003-06-23 | 2005-01-13 | Ibiden Co., Ltd. | ハニカム構造体 |
EP1538133B1 (en) | 2003-06-23 | 2018-01-10 | Ibiden Co., Ltd. | Honeycomb structure |
ATE484330T1 (de) | 2003-07-15 | 2010-10-15 | Ibiden Co Ltd | Honigwabenstrukturkörper |
WO2005044425A1 (ja) | 2003-11-07 | 2005-05-19 | Ibiden Co., Ltd. | 排気ガス浄化用ハニカムフィルタおよびその製造方法 |
US7387829B2 (en) * | 2004-01-13 | 2008-06-17 | Ibiden Co., Ltd. | Honeycomb structure, porous body, pore forming material for the porous body, and methods for manufacturing the pore forming material, the porous body and the honeycomb structure |
EP1952871B1 (en) * | 2004-05-18 | 2016-10-19 | Ibiden Co., Ltd. | Exhaust gas purifying device and its holding sealing material |
DE602006002244D1 (de) * | 2006-02-28 | 2008-09-25 | Ibiden Co Ltd | Trageelement für Trocknung, Trocknungsverfahren eines Presslings mit Wabenstruktur, und Verfahren zur Herstellung eines Wabenkörpers. |
WO2007102216A1 (ja) * | 2006-03-08 | 2007-09-13 | Ibiden Co., Ltd. | 脱脂炉投入装置、及び、ハニカム構造体の製造方法 |
WO2007108076A1 (ja) * | 2006-03-17 | 2007-09-27 | Ibiden Co., Ltd. | 乾燥装置、セラミック成形体の乾燥方法及びハニカム構造体の製造方法 |
WO2007122716A1 (ja) * | 2006-04-20 | 2007-11-01 | Ibiden Co., Ltd. | 搬送装置、及び、ハニカム構造体の製造方法 |
WO2008129691A1 (ja) * | 2007-03-30 | 2008-10-30 | Ibiden Co., Ltd. | ハニカムフィルタ |
WO2008139581A1 (ja) * | 2007-05-09 | 2008-11-20 | Ibiden Co., Ltd. | 炭化ケイ素焼成用原料の製造方法、及び、ハニカム構造体の製造方法 |
WO2008149435A1 (ja) * | 2007-06-06 | 2008-12-11 | Ibiden Co., Ltd. | 焼成用治具及びハニカム構造体の製造方法 |
WO2008155856A1 (ja) * | 2007-06-21 | 2008-12-24 | Ibiden Co., Ltd. | ハニカム構造体、及び、ハニカム構造体の製造方法 |
-
2003
- 2003-03-17 US US10/502,044 patent/US7393376B2/en active Active
- 2003-03-17 DE DE60321831T patent/DE60321831D1/de not_active Expired - Lifetime
- 2003-03-17 EP EP05019870A patent/EP1604724B1/en not_active Expired - Lifetime
- 2003-03-17 AT AT05019867T patent/ATE374067T1/de not_active IP Right Cessation
- 2003-03-17 AT AT05019869T patent/ATE374068T1/de not_active IP Right Cessation
- 2003-03-17 EP EP05019866A patent/EP1604720B1/en not_active Expired - Lifetime
- 2003-03-17 AT AT05019871T patent/ATE374069T1/de not_active IP Right Cessation
- 2003-03-17 AT AT05019868T patent/ATE363327T1/de not_active IP Right Cessation
- 2003-03-17 DE DE60317778T patent/DE60317778T2/de not_active Expired - Lifetime
- 2003-03-17 EP EP03708649A patent/EP1486242B1/en not_active Expired - Lifetime
- 2003-03-17 DE DE60316607T patent/DE60316607T2/de not_active Expired - Lifetime
- 2003-03-17 DE DE60317942T patent/DE60317942T2/de not_active Expired - Lifetime
- 2003-03-17 AT AT05019865T patent/ATE401117T1/de not_active IP Right Cessation
- 2003-03-17 DE DE60314188T patent/DE60314188T2/de not_active Expired - Lifetime
- 2003-03-17 EP EP05019867A patent/EP1604721B1/en not_active Expired - Lifetime
- 2003-03-17 DE DE60316608T patent/DE60316608T2/de not_active Expired - Lifetime
- 2003-03-17 WO PCT/JP2003/003183 patent/WO2003078026A1/ja active IP Right Grant
- 2003-03-17 EP EP05019871A patent/EP1604725B1/en not_active Expired - Lifetime
- 2003-03-17 JP JP2003576077A patent/JPWO2003078026A1/ja active Pending
- 2003-03-17 DE DE60322270T patent/DE60322270D1/de not_active Expired - Lifetime
- 2003-03-17 AT AT05019870T patent/ATE399049T1/de not_active IP Right Cessation
- 2003-03-17 DE DE60316609T patent/DE60316609T2/de not_active Expired - Lifetime
- 2003-03-17 EP EP05019869A patent/EP1604723B1/en not_active Expired - Lifetime
- 2003-03-17 AT AT05019866T patent/ATE380063T1/de not_active IP Right Cessation
- 2003-03-17 EP EP05019865A patent/EP1604719B1/en not_active Expired - Lifetime
- 2003-03-17 EP EP05019868A patent/EP1604722B1/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06241018A (ja) * | 1993-02-17 | 1994-08-30 | Ibiden Co Ltd | 排気ガス浄化装置 |
US6159578A (en) * | 1998-05-12 | 2000-12-12 | Ngk Insulators, Ltd. | Hexagonal-cell honeycomb structure and method for fixation thereof |
JP2001170426A (ja) * | 1999-12-14 | 2001-06-26 | Ibiden Co Ltd | ハニカムフィルタおよびその製造方法 |
JP2002054422A (ja) * | 2000-08-08 | 2002-02-20 | Ngk Insulators Ltd | セラミック製フィルター及びその製造方法 |
JP2002273130A (ja) * | 2001-03-22 | 2002-09-24 | Ngk Insulators Ltd | ハニカム構造体 |
JP2003117320A (ja) * | 2001-10-09 | 2003-04-22 | Ngk Insulators Ltd | ハニカムフィルター |
Cited By (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7510588B2 (en) | 2002-03-29 | 2009-03-31 | Ibiden Co., Ltd. | Ceramic filter and exhaust gas decontamination unit |
JP2005144250A (ja) * | 2003-11-12 | 2005-06-09 | Ngk Insulators Ltd | ハニカム構造体 |
US7468086B2 (en) | 2004-04-05 | 2008-12-23 | Et Us Holdings Llc | Device for cleaning vehicular exhaust gas, in particular a diesel exhaust particle filter, and vehicle comprising such device |
EP1584801A3 (de) * | 2004-04-05 | 2007-04-18 | Arvin Technologies, Inc. | Vorrichtung zum Reinigen von Fahrzeugabgasen, insbesondere Dieselrussfilter, und Fahrzeug mit entsprechender Vorrichtung |
WO2005108328A1 (ja) | 2004-05-06 | 2005-11-17 | Ibiden Co., Ltd. | ハニカム構造体及びその製造方法 |
JPWO2005108328A1 (ja) * | 2004-05-06 | 2008-03-21 | イビデン株式会社 | ハニカム構造体及びその製造方法 |
US7662204B2 (en) * | 2004-08-03 | 2010-02-16 | Emcon Technologies Llc | Device for purifying exhaust gases of a motor vehicle and method for the production thereof |
US7846526B2 (en) | 2004-12-27 | 2010-12-07 | Ibiden Co., Ltd | Honeycomb structural body and sealing material layer |
CN100435956C (zh) * | 2005-02-01 | 2008-11-26 | 揖斐电株式会社 | 蜂窝结构体 |
US7651754B2 (en) | 2005-02-01 | 2010-01-26 | Ibiden Co., Ltd. | Honeycomb structure |
WO2006082684A1 (ja) * | 2005-02-01 | 2006-08-10 | Ibiden Co., Ltd. | ハニカム構造体 |
US7658985B2 (en) | 2005-05-23 | 2010-02-09 | Ngk Insulators, Ltd. | Honeycomb structure |
WO2006126507A1 (ja) * | 2005-05-23 | 2006-11-30 | Ngk Insulators, Ltd. | ハニカム構造体 |
JP5252916B2 (ja) * | 2005-05-23 | 2013-07-31 | 日本碍子株式会社 | ハニカム構造体 |
JP2007014886A (ja) * | 2005-07-07 | 2007-01-25 | Ngk Insulators Ltd | ハニカム構造体 |
JP4607689B2 (ja) * | 2005-07-07 | 2011-01-05 | 日本碍子株式会社 | ハニカム構造体 |
US8137428B2 (en) * | 2006-06-27 | 2012-03-20 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas purification apparatus for internal combustion engine |
US9926824B2 (en) | 2008-08-27 | 2018-03-27 | Vida Fresh Air Corp. | Catalytic converter apparatus |
KR101817046B1 (ko) * | 2008-08-27 | 2018-01-09 | 비다 홀딩스 코포레이션 리미티드 | 촉매 변환 장치 |
EP2236482A2 (en) | 2009-03-26 | 2010-10-06 | NGK Insulators, Ltd. | Ceramic honeycomb structure |
JP2010234243A (ja) * | 2009-03-31 | 2010-10-21 | Ngk Insulators Ltd | ハニカム構造体及びその製造方法 |
JPWO2012121331A1 (ja) * | 2011-03-10 | 2014-07-17 | 日本碍子株式会社 | ハニカム構造体 |
US8911849B2 (en) | 2011-03-10 | 2014-12-16 | Ngk Insulators, Ltd. | Honeycomb structure |
JP5972257B2 (ja) * | 2011-03-10 | 2016-08-17 | 日本碍子株式会社 | ハニカム構造体 |
WO2012121331A1 (ja) * | 2011-03-10 | 2012-09-13 | 日本碍子株式会社 | ハニカム構造体 |
JP2013024221A (ja) * | 2011-07-26 | 2013-02-04 | Ngk Insulators Ltd | ハニカム構造体、ハニカム触媒体及び排ガス処理装置 |
JP2014117662A (ja) * | 2012-12-18 | 2014-06-30 | Ngk Insulators Ltd | 微粒子捕集フィルタ |
TWI581846B (zh) * | 2014-12-31 | 2017-05-11 | Chane Yu Lai | Removable filter device |
Also Published As
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2003078026A1 (fr) | Filtre de ceramique destine au controle de l'emission de gaz d'echappement | |
EP1508356B1 (en) | Honeycomb filter and ceramic filter assembly | |
JP4372760B2 (ja) | セラミックフィルタ集合体およびその製造方法 | |
JP4051163B2 (ja) | セラミックフィルタ集合体 | |
JP2013027870A (ja) | ハニカム構造体及びその製造方法 | |
JP3965007B2 (ja) | 多孔質炭化珪素焼結体、ハニカムフィルタ、セラミックフィルタ集合体 | |
JP2001096116A (ja) | セラミックフィルタ集合体、ハニカムフィルタ | |
JP2001162119A (ja) | セラミックフィルタ集合体 | |
JP4368557B2 (ja) | セラミックフィルタ集合体 | |
JP4167814B2 (ja) | セラミックフィルタ集合体 | |
JP2006061909A (ja) | セラミックフィルタ集合体 | |
JP2002274947A (ja) | 多孔質炭化珪素焼結体及びその製造方法、ディーゼルパティキュレートフィルタ | |
JP2009012005A (ja) | ハニカムフィルタおよびフィルタ集合体 | |
JP2004216375A (ja) | セラミックフィルタ集合体、ハニカムフィルタ | |
JP2001097776A (ja) | 多孔質炭化珪素焼結体、ハニカムフィルタ、セラミックフィルタ集合体 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): CN JP KR US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2003708649 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2003576077 Country of ref document: JP |
|
WWP | Wipo information: published in national office |
Ref document number: 2003708649 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006213163 Country of ref document: US Ref document number: 10502044 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 10502044 Country of ref document: US |
|
WWG | Wipo information: grant in national office |
Ref document number: 2003708649 Country of ref document: EP |